Are you asking for a working definition of human nature? Our essence/consciousness?
Much research is being done on it's biological origins.
Esoteric stuff.
What they will do with the results, is the stuff of science fiction.
What they will with it in reality, remains to be seen.
I will postulate that at our core is a need to be entertained.
To use our senses for this purpose.
We are just beginning to understand this.
When a child over excites themselves we give them a time out.
In the old days, they got the crap beat out of them. That wasn't so effective.
It's why when we find someone entertaining themselves in ways negative to society we limit their sensory input.
We put them in isolation (jails) as a form of punishment/torture.
Or end their lives.
So, as creatures, we strive for sensory input that entertains us.
To get our endorphins flowing.
There are more, such as dopamine.
Other brain chemicals are there to limit this.
When that goes out of balance, we generally consider those people insane.
It's also believed that our biota can play role as well.
There is current research on it's role in depression, and obesity.
That's just what I know of.
Cutting edge stuff.
The real question is, how this will be applied to us in our political future.
Or whether we can figure out how to apply it.
We are entertained in different ways than we were 100 years ago.
But we are still entertained........................................................................